[scottsss]

I had some blanks water jet cut to speed up the maching time. My question is, can I import the drawing of the part designed for water jet cut or is there an easy way to define the stock as having a hole in its center so I do not waste time cutting air? I tried using casting but I can not find mention of it in the help file. I'm use to mastercam and would just import a model of the stock.

[bevinp]

You can import a model as the Workpiece that can be aligned, rotated, etc like the Part.
Under the Model tab, select Workpiece and Import the model of your blanks.

[tkgb]

One thing that could work is to extrude the curves on the part and use that as the workpiece.
I often use this method when i work with parts that are watercut to profile and not starting from a square piece of stock.

SprutCAM7 Waterline Roughing and Finishing Strategy - YouTube